Did you read the article or just look for something You disagreed with? You asked for evidence that this is a new virus. The article shows in wonderful detail how COVID-19 is distinct from, but similar to, a few characterized coronavirus samples. It is pretty interesting evidence that suggests it is man-made, and obviously novel.

Also about that article with the measles thing, not really sure but it looks like a mischaracterization of the trial, here's a rebuttal that seems reasonable to me: https://skeptics.stackexchange.com/questions/39817/did-germanys-supreme-court-rule-that-the-measles-virus-didnt-exist